The movable part of the solenoid is the: A) the plunger. B) ...

[vicky]

The movable part of the solenoid is the:
 
  A) the plunger. B) magnetic field.
  C) electromagnetic coil. D) all of these.

Question 2

The principal difference between a solenoid and a relay is that:
 
  A) relays use magnets, solenoids do not.
  B) solenoids do electrical work, relays do mechanical work.
  C) solenoids do mechanical work, relays do electrical work.
  D) relays relay electricity, solenoids do not.

[aidanmbrowne]

Answer to Question 1

A

Answer to Question 2

C

[vicky]

Thanks for the timely response, appreciate it

[bitingbit]

Great answer, keep it coming